Caulking tube holder



FIG. 1 is a perspective view of the caulking tube holder in full lines with a caulking tube shown in broken lines representing environmental association matter being for illustrative purposes only and forming no part of the claimed design.

FIG. 2 is a front elevational view of the caulking tube holder.

FIG. 3 is a rear elevational view thereof.

FIG. 4 is left side elevational view thereof.

FIG. 5 is a right side elevational view thereof.

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof. 

The ornamental design for a caulking tube holder, as shown and described. 